917 971 657 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
128378204601658159457	21	66.8	2015-09-01 22:30:05

History

Date	User	Type	Result
2015-09-01	Alex_soldier	F	Factor: 128378204601658159457 / TF: 66-68*
2013-05-29	ramgeis	NF	no factor from 2^65 to 2^66
2011-09-21	linded	NF	no factor from 2^64 to 2^65
2010-06-22	linded	NF	no factor from 2^63 to 2^64

Username
Password